Contra Costa County property record for 9730 Alcosta Blvd, San Ramon, CA 94583
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4 ba · 3,683 sqft · built 1987 |
| Lot Size | 0.349 acres (15,200 sqft) |
| Owner | Individual Name on File |
| Last Sale | $900,000 (Oct 2014) |
| Tax Bill | $13,187 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 210-751-029-5 |
| Primary APN | 210-751-029-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 3,683 sqft Living Area |
| 1st Floor Area | 1,434 sqft |
| 2nd Floor Area | 2,249 sqft |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1995 |
| Lot Area | 15,200 sqft (0.349 acres) |
| Garage Type | Attached |
| Garage Area | 713 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 9730 ALCOSTA BLVD |
|---|---|
| City | SAN RAMON |
| State | CA |
| Zip | 94583-3661 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T05612 L0029 B EX MR |
| Legal Tract | 05612 |
| Legal Lot Number | 29 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3017 |
| Census Tract | 345112 |
9730 Alcosta Blvd is owned and occupied by an individual who bought it in October 2014.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 9730 ALCOSTA BLVD, SAN RAMON, CA 94583-3661 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 13, 2014 · Amount on File |
| Deed Sale | Oct 13, 2014 · Amount on File |
| Deed Document Number | 2014175945 |
| Prior Transfer Date | Aug 16, 2002 |
| Prior Transfer Doc | 0000297922 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 9730 Alcosta Blvd was $13,187.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | San Ramon City |
| Unified School District | San Ramon Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,162,479 (+2%) Land $509,964 Building $652,515 | |
| 2025 | $13,187.00 | $1,139,686 Land $499,965 Building $639,721 |
| 2023 | $12,724.00 (+0.72%) | $1,095,432 Land $480,551 Building $614,881 |
| 2022 | $12,633.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 9730 Alcosta Blvd in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 9730 Alcosta Blvd is moderate, ranking above 42% of the US, with a 0.09% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 42% of the US · lower than 75% of California |
|---|---|
| Wildfire Likelihood | 0.09% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 156 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
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